Home / 776,380.47-1,071,453.99-470,483.61

Finding the Fourth Proportional to 776,380.47, 1,071,453.99 and 470,483.61

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Solution

The fourth proportional to 776,380.47, 1,071,453.99 and 470,483.61 is: 649,297.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    776,380.47 : 1,071,453.99 = 470,483.61 : x
  2. Step 2: Convert to fraction form
    776,380.47/1,071,453.99 = 470,483.61/x
  3. Step 3: Cross multiply
    776,380.47x = 1,071,453.99 × 470,483.61
  4. Step 4: Simplify right side
    776,380.47x = 504,101,541,164.10
  5. Step 5: Solve for x
    x = 504,101,541,164.10/776,380.47
  6. Step 6: Final answer
    x = 649,297.04

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.